My NexusOne's builtin launcher is suddenly hanging at bootup. Since the main lock screen is hanging the screen touch is not working, soft buttons are not working -- I am just completely unable to do anything with the phone. When I tried calling the phone the call comes through, and I see the "Activity Launcher is not responding. Force Close?" popup, but when I force close it and the call ends, it goes back to the hanging lock screen and once again I am able to do nothing.
Since it is stuck at lock screen there is literally nothing I can do to kill it or try other apps or settings or anything else. Even connecting USB cable didn't work since I need to enable USB storage from the notification bar and the hanging lock screen wont allow any touch response anywhere...
What can I do or try? I guess hard reset is an option to try, but I want to keep it as a worst case option.